app.py

from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel, load_tool, tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
from Gradio_UI import GradioUI

# Custom Tools
@tool
def get_current_time_in_timezone(timezone: str) -> str:
    """A tool that fetches the current local time in a specified timezone.
    Args:
        timezone: A string representing a valid timezone (e.g., 'America/New_York').
    """
    try:
        tz = pytz.timezone(timezone)
        local_time = datetime.datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S")
        return f"The current local time in {timezone} is: {local_time}"
    except Exception as e:
        return f"Error fetching time for timezone '{timezone}': {str(e)}"

@tool
def weather_lookup(city: str) -> str:
    """Fetches current weather conditions for a specified city.
    Args:
        city: The city name to get weather for (e.g., 'Paris, France')
    """
    try:
        response = requests.get(f"https://wttr.in/{city}?format=%C+%t")
        return f"Weather in {city}: {response.text}"
    except Exception as e:
        return f"Error fetching weather: {str(e)}"

@tool
def unit_converter(value: float, from_unit: str, to_unit: str) -> str:
    """Converts between different units (length, weight, temperature).
    Args:
        value: The numerical value to convert
        from_unit: The unit to convert from (e.g., 'miles')
        to_unit: The unit to convert to (e.g., 'kilometers')
    """
    # Simplified conversion examples
    conversions = {
        ('miles', 'kilometers'): lambda x: x * 1.60934,
        ('fahrenheit', 'celsius'): lambda x: (x - 32) * 5/9,
        ('pounds', 'kilograms'): lambda x: x * 0.453592
    }
    try:
        if (from_unit, to_unit) in conversions:
            result = conversions[(from_unit, to_unit)](value)
            return f"{value} {from_unit} = {result:.2f} {to_unit}"
        return f"Conversion from {from_unit} to {to_unit} not supported"
    except Exception as e:
        return f"Conversion error: {str(e)}"

# Initialize tools
final_answer = FinalAnswerTool()
duckduckgo_search = DuckDuckGoSearchTool()
image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)

# Initialize model
model = HfApiModel(
    max_tokens=2096,
    temperature=0.5,
    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',
    custom_role_conversions=None,
)

# Load system prompt
with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)
    
# Create agent with all tools
agent = CodeAgent(
    model=model,
    tools=[
        final_answer,  # Required
        duckduckgo_search,
        image_generation_tool,
        get_current_time_in_timezone,
        weather_lookup,
        unit_converter
    ],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)

# Launch the interface
GradioUI(agent).launch()